Furnace for



1. s. CLARKE. Y ruRNAcE Foa EvAPonAroRs.

APPLICATlOIf FILED APR. 1.0. 1918. 1,304,542. Patented May 27, 1919.

f F M L21 d M f w ATTORNEY l JOHN S. CLARKE, 0F PINGKNEYVILLE, KENTUCKY.

FURNACE Fon nvAPonAToRs. i 'i Specification of Letters Patent.

Patented May 2v, 1919.

Application led April 10, 1918. v Serial No. 227,737.

To all whom t may concern.'

Be it known that I, JOHN S. CLARKE, a citizen of the United States, residing at Pinckneyville, in the county of Livingston and State of Kentucky, have invented certain new and useful Improvements in Furnaces for Evaporators, of which the following is a specification.

This invention relates to furnaces for evaporating apparatus used in the concentration of syrups.

The object of the invention is to provide a simple and eiicient furnace of this character constructed so that it may be turned to `always present a draft opening to the wind and thereby insure a continuous draft and a steady re to effect speedy concentration of the syrup.

Another object is to construct a furnace so that the heat may be controlled to prevent liability of burning of the syrup.

With the foregoing and other objects in view, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being .understood that changes in the precise embodiment of the invention herein disclosed may be made within the scope of what is claimed without departing from the spirit of the invention.

In the accompanying drawings Figure 1 represents a top plan view of a furnace constructed in accordance with this invention,

Fig. 2 is a longitudinal section taken on the line 2 2 of Fig. 1,

Fig. 3 is a transverse section taken on the line 3 3 of Fig. 1, and

Fig. 4 is a transverse section through one of the wheels.

In the embodiment illustrated, the furnace constituting this invention comprises a body 1, here shown rectangular in form, with cross bars 2 arranged in the bottom thereof in longitudinally spaced relation with their ends projecting beyond the opposite sides of the body.

Diagonally disposed braces 3 are also arranged on the bottom of the body 1 intersecting each other about midway the length of said body as is shown clearly in Fig. 1. The opposite ends of these braces 3 also project beyond the sides of the body and underlap the projecting ends of the cross bars 2, these lapping ends being provided with aper tures for the passage therethrough of wheel supporting spindles 10 which are swiveled 1n their bearings. These spindles have their lower ends threaded for adjustable engagement with wheel carrying members. In these members 12 are mounted the wheels 11the upper ends of these members being designed to rest against the lower faces of the projecting ends of the brace bars 3 as shown at 13 inv Fig. 3. These spindles 10 also project through apertures in laterally extending brackets 4 carried by the upper faces of the side walls of the body 1. These brackets 4 as shown, are vL-shaped in form, and the spindles 10 have swiveled connection ,with their laterally extending arms 5 to permit the ready turning of the wheels. These spindles being mounted to revolve in their bearings, provide4 for the turning of the furnace so as to retain the draft opening shown at 6 always toward the wind so that a continuous draft will be furnished to the Vfurnace to render the heat uniform.

The body 1 has an opening 7 in its bottom near its front end in which a grate, not shown, is designed to be mounted, while its rear endlias a cross plate 8 with van opening 9 in which a combustion pipe, not shown, is to be mounted.

A horizontal Vpartition 14 is mounted in the rear portion of the body 1 as is shown clearly in Fig. 2 so that the flame may be directed either above or below it for controlling the heat supplied to the evaporating apparatus which it is understood is designed to be mounted over said body 1 and preferably to rest on the top thereof.

This partition 14 terminates at its rear end in a plane in advance of that occupied by the opening 9 and is inclined downwardly and forwardly as shown clearly in Fig. 2 so as to provide proper draft. This partition 14 and the damper 15 to be described, are both preferably coated with asbestos to prevent all danger of the syrup being scorched during the last stages of the evaporating process.

A hinged damper is mounted at the front end of the partition 14 and is adapted to be swung either up or down as shown in Fig. 2 for controlling the direction the flame is to pass. This damper 15 which extends transversely across the body 1 is mounted on a body and provided with a crank handle 17 for operating the damper. lDamper stops 18 are carried by the inner face of the opposed sid'e walls of the body 1 as shown clearly in Figs. l, 2 and 3, and are preferably composed of brackets.- Obviously, however, these stops may be of Vany desired construction, their object being to limit the upward swinging movement of the damper as shown i'n dotted lines in Fig. 2.

The wheels 11 are preferably dishfshaped as shownl in cross section in Fig. 4, with grooves 11 in their periph'eries.

Six wvheels are here 'shown on which the body l is mounted, but obviously, vany desired number may be used according to the size of the fu'rnaee to be supported.

From the above'description it will be ob- 'vio'us that this furnace while very simple in construction and cheap to manufacture, may be readily transported' from place to place and the body 1 thereof may be positioned at different inclines by adjusting the wheel spindles l5 in the brackets 5, and by providing revolu'ble vwheels therefor it may be turned 'at any desired 'angle according to the direction in which the wind is blowing so that the draft opening 6 will always face the wind for ythe reason above described.

The foregoing description and the Vdrawings have reference to what may be consid`- ered the preferred or approved form of my invention. It is to be understood that I may make such changes in construction and arrangement and combination of parts, ma teri'als, dimensions, et al., as may prove expedient and fall within the scope of the claimed invention.

Having thus fully described my invention, what I Yclaim as new and desire to secure by Letters Patent, is

In an evaporating furnace, a substantially rectangular body member, longitudinally spaced cross bars secured to the bottom thereof and projecting at opposite ends beyond' yits side walls, diagonally disposed brace bars also arranged on the bottom of said body and intersecting intermediately of `their lends, said ba-rs projecting at their ends beyond the sides of said body and apertu'red forming combined brace members and spindle bearings, the apertured ends of the diagonal bars underlapping the ends of the 'cross bars, the cross bars :also having apertures to register with those inthe diagonal bars, apertured' brackets carried by the side 'walls of said body in vertical alinement with the apertured ends of said bars, spindles revolnbly Inonnted in the registering apertures 'of said bar ends and brackets, wheel carrying members having threaded sockets, 'the lower ends "of said spindles being threaded for detachable and adjustable engagement with 'said wheel carrying members.

In testimony whereof VI my Asignatre in presence of two witnesses.

JOHN S. CLARKE.

Witnesses: j

T. W. RADCLIFFE, RA. CLARKE. 

